/// <summary>
/// Copies an array from the given stream using the given accessor.
/// </summary>
/// <param name="accessor">The accessor to use.</param>
/// <param name="stream">The stream to copy from.</param>
internal virtual void CopyFrom(MappedAccessor <T> accessor, Stream stream)
{
long i = 0;
var element = default(T);
while (i < this.Length)
{
accessor.ReadFrom(stream, stream.Position, ref element);
this[i] = element;
i++;
}
}
/// <summary>
/// Creates a memory mapped array based on existing data.
/// </summary>
public Array(MappedAccessor <T> accessor, int bufferSize, int cacheSize)
{
_accessors = new List <MappedAccessor <T> >();
_accessors.Add(accessor);
_accessorSize = accessor.CapacityElements;
_createAccessor = null;
// create first accessor.
_length = accessor.CapacityElements;
_bufferSize = bufferSize;
_cachedBuffer = null;
_cachedBuffers = new LRUCache <long, CachedBuffer>(cacheSize);
_cachedBuffers.OnRemove += new LRUCache <long, CachedBuffer> .OnRemoveDelegate(buffer_OnRemove);
}
/// <summary>
/// Creates a new index based on one fixed-size accessor.
/// </summary>
public Index(MappedAccessor <T> accessor)
{
_accessors = new System.Collections.Generic.List <MappedAccessor <T> >();
_accessors.Add(accessor);
_accessorBytesLost = new System.Collections.Generic.List <long>();
_accessorBytesLost.Add(0);
_accessorSize = accessor.Capacity;
if (!accessor.ElementSizeFixed)
{ // use the size in bytes.
_accessorSizeElements = _accessorSize;
}
else
{ // use the size in elements.
_accessorSizeElements = accessor.CapacityElements;
}
}
/// <summary>
/// Creates a memory mapped array based on existing data.
/// </summary>
public Array(MappedAccessor <T> accessor, ArrayProfile profile)
: this(accessor, profile.BufferSize, profile.CacheSize)
{
}
/// <summary>
/// Creates a memory mapped array based on existing data.
/// </summary>
public Array(MappedAccessor <T> accessor)
: this(accessor, DefaultBufferSize, DefaultCacheSize)
{
}
